Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH)

Historical Holders from Q2 2014 to Q1 2025

Symbol
AMPH on Nasdaq
CUSIP
03209R103
Type / Class
Equity / Common Stock
Shares outstanding
50.5M
All holders as of December 31, 2024
Q4 2024
Shares, excl. options
35.2M
Holdings value
$1.31B
% of all portfolios
0.001%
Grand Portfolio weight change
0%
Number of holders
261
Number of buys
111
Number of sells
-146
Average Value change %
0%
Average buys %
+0%
Average sells %
-0.001%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Zhang Jack Y. 24.8% $356M 12.5M Jack Y. Zhang Dec 31, 2024

Institutional Holders of Amphastar Pharmaceuticals, Inc. - Common Stock (AMPH)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q1 479K $13.9M -$1.21M $28.99 24
2024 Q4 35.2M $1.31B -$15.3M $37.13 261
2024 Q3 35.3M $1.71B +$41.5M $48.53 275
2024 Q2 34.4M $1.38B +$32.8M $40.00 267
2024 Q1 33.6M $1.47B +$1.07M $43.91 271
2023 Q4 33M $2.04B +$87.3M $61.85 271
2023 Q3 32M $1.47B +$20.6M $45.99 249
2023 Q2 31.4M $1.8B +$73.8M $57.47 239
2023 Q1 30.1M $1.13B +$44.4M $37.50 213
2022 Q4 29M $813M -$20.5M $28.02 204
2022 Q3 28.7M $808M -$33M $28.10 188
2022 Q2 30.3M $1.05B +$38.1M $34.79 212
2022 Q1 29.1M $1.05B +$27.4M $35.90 197
2021 Q4 29.1M $678M +$19.5M $23.29 162
2021 Q3 27.9M $531M +$12.4M $19.01 137
2021 Q2 27.2M $548M +$23.7M $20.16 141
2021 Q1 26M $476M +$861K $18.32 131
2020 Q4 25.9M $522M -$3.02M $20.11 124
2020 Q3 26.2M $491M -$4.98M $18.75 129
2020 Q2 26.3M $591M +$55.4M $22.46 131
2020 Q1 23.8M $353M -$14M $14.84 101
2019 Q4 24.6M $474M +$9.59M $19.29 115
2019 Q3 24.1M $478M +$39.4M $19.83 129
2019 Q2 22.3M $471M +$11M $21.11 127
2019 Q1 22.2M $454M +$5.83M $20.43 132
2018 Q4 22.2M $442M +$30.7M $19.90 128
2018 Q3 20.6M $397M +$12M $19.24 103
2018 Q2 20.1M $307M -$10M $15.26 107
2018 Q1 20.5M $384M +$3.37M $18.75 113
2017 Q4 20.5M $395M +$7.44M $19.24 101
2017 Q3 20.2M $362M -$3.14M $17.87 99
2017 Q2 20.4M $365M +$4.13M $17.86 106
2017 Q1 20.4M $296M +$42.3M $14.50 113
2016 Q4 22.3M $411M +$7.36M $18.42 133
2016 Q3 22.2M $421M +$115M $18.97 133
2016 Q2 16.2M $261M +$32.1M $16.12 104
2016 Q1 14.3M $171M -$8.85M $12.00 93
2015 Q4 14.7M $210M +$13M $14.23 93
2015 Q3 12.1M $141M -$5.57M $11.69 89
2015 Q2 13.2M $232M +$48.3M $17.58 83
2015 Q1 10.6M $158M +$42.1M $14.96 57
2014 Q4 7.91M $91.8M +$5.9M $11.61 53
2014 Q3 7.24M $84.4M +$80.9M $11.64 44
2014 Q2 300K $3M +$3M $10.01 2